Gage.



m. 7|a,|79. Patented any. n, I902.

J. A. TRAUT.

GAGE.

(Application filed. June 2, 1902.;

(No Model.)

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By his Attorney UNITED STATES PATENT OFFICE.

JUSTUS A. TRAUT, OF NEW BRITAIN, CONNECTICUT, ASSIGNOR TO THE STANLEYRULE 8: LEVEL COMPANY, OF NEW BRITAIN, CONNECTICUT, A CORPORATION OFCONNECTICUT.

GAGE.

SPECIFICATION forming part of Letters Patent N 0. 713,17 9, datedNovember 1 1, 1902.

Application filed June 2. 1902. Serial No.109,908. (No model.)

To all whom, it may concern:

Be it known that I, Jusrus A. TRAUT, a citizen of the United States,residing in New Britain, in the county of Hartford and State 5 ofConnecticut, have invented certain new and useful Improvements in Gages,of which the following is a specification.

This invention relates to gages; and it consists,substantially, in theimprovements here- [0 inafter particularly described.

The invention has reference more especially to gages of the typeemployed by carpenters and others for marking otf predetermined widthsor depths of grooves or rabbets to be cut in bodies of wood or othermaterial by means of a chisel or similar cutting implement, such form ofgage comprising mainly a stock having thereon an adjustable block orhead and provided at or near an end thereof with a marking device orscriber for making an incision or scribe in the work to be operatedupon, the distance of such incision or scribe from the edge of the workbeing governed by the said block or head in a manner 1 well known.Numerous marking devices or scribers have been hitherto devised for usein connection with gages of this kind; but many of them have proveninadequate to the requirements thereof in practice, especially for finework. In some instances it has been common to employ an ordinary pin forthe purpose and in others a conical tool sharpened to a point; but it isdifficult with either of such devices to produce an incision or 5 scribein the work without tearing the edge thereof at some point, and whichnecessitates subsequent dressing of such edge to render the same evenand well defined throughout.

The principal object of the present inven- 0 tion is to overcome theabove-mentioned disadvantages and objections and to provide a gage ofthe kind referred to which may be applied with accuracy andefiectiveness in the different uses thereof and one also which 5possesses simplicity of construction and organization of the operativeelements thereof.

A further object of the invention is to provide the gage with a markingdevice or scriber of special construction for producing in the surfaceof the work to be operated upon an incision or scribe having a welldefined straight edge requiring no subsequentdressing in the formationof a rabbet or groove.

These and additional objects are attained by means substantiallysuch asare illustrated in the accompanying drawings, in which Figure 1 is aside view of a gage embodying my improvements, and Fig. 2 is a similarview taken at right angles to Fig. 1, one end thereof being in sectionto more clearly indicate the means by which my improved marking deviceor scriber is held in the end of the gage-stock. Figs. 3 and 4 areenlarged detail views in perspective representing my improved markingdevice or scriber in duplicate or reversible form and singlefor1n,respectively. Fig. 5 is an end View ofv Fig. 1. Fig.

6 is a sectional detail view of the operative end of the gage-stock,taken substantially at right angles to the hatched portion of Fig.2.Fig. 7 is a sectional detail view showing the form of incision or scribeeffected by my improved marking device or scriber.

Before proceeding with a more detailed description it may be stated thatI employ a gage comprising a'stook having thereon a scale divided upinto inches,with subdivisions thereof, and adjustably supported on thestock is a sliding block or head for abutting an edge of the work towhich the gage may be applied. I provide one end of the stock with amarking device or scriber of special construction, as will hereinaftermore fully appear, and I also provide special means fordetachablysecuring the said marking device or scriber in place upon thegage-stock, it being understood that variations may be made in theconstruction of each and still come within the scope of my invention.

Specific reference being had to the accom- 9o panying drawings, Arepresents the stock of my improved gage, and B the usual adjustableblock or head thereon, the latter being provided with a screw C fortightening the same in different positions on the stock and the stockhaving thereon a scale a of inches having subsivisions, as shown in Fig.1.

My improved marking device or scriber is indicated at D, and while thesame may be fitted in place on the stock in any suitable I00 way Ipreferably provide special means therefor, as will now be described.Thus I form in the said stock for a suitable distance from an endthereof a slot or kerf b, and in the op posite sides of said slot orkerf I form semicircular recesses c c, the walls of which between themconstitute a circular opening 0 in which is received the circular bodyportion 61 of my said improved marking device or scriber D. I also formin the stock, preferably at right angles to the said slot or kerftherein,'a screw-threaded opening e, in which is fitted a screwf, thetightening up of which serves to draw or force together the dividedportions 9 g of the stock, and thereby cause the walls of said recessesc c toclamp the marking device or scriber between them, the head of saidscrew being countersunk in the side of the stock, as indicated in Fig.2.

The marking device or scriber of my invention is substantially acircular elongated body and is preferably made in duplicate orreversible, so as to enable the gage to be effectively applied atopposite edges of a piece of work to produce an incision or scribe foreach edge of a groove which is to be cut or formed in the Work by asuitable implement for the purpose, although I may-form the device witha single marking or scribing portion only, as indicated in Fig. 4, forinstance. In constructing my said improved marking device or scriber Ipurposely avoid the formation of a point at the operative end or endsthereof, since, as already mentioned, such a structure frequentlyresults in tearing out of the edge of the incision or scribe formed inthe surface of the work. Instead, however, I form the device for asuitable distance from one or both ends thereof with a straight side orface 2 and a curved cutting edge 3, the device being beveled at the endon the opposite side thereof, as indicated at 5. By the employment ofthe said curved cutting edge all angles or corners are also avoided, andby means of such cutting edge, combined with the straight side or face 2of the device, I am enabled to produce in the surfaces of wood and othermaterial an incision or scribe the outer edge of which is straight andwell defined, as indicated at 10 in the detail view, Fig. 7, and whichedge does not require to be specially dressed in the subsequentoperation of removing parts of the material in the formation of a grooveor rabbet by means of a chisel or similar tool in the ordinary way. Asis apparent from said Fig. 7, after the incisions or scribes have beeneffected by properly applying the gage to the work preparatory to theformation of a groove, for instance, the bed of material 12 between suchincisions or scribes may be readily removed to the required depth. Thegreater the pressure exerted upon the marking device or scriber thedeeper will be theincision orscribe produced thereby, of course, and itwill be seen that by duplicating the said device or scriber in reversemanner at the ends, as shown, I amenabled .to apply the gage to eitheredge of the work with equal facility and success. My said improvedmarking device or scriber, as will be understood, constitutes a newarticle of manufacture, Which may be sold to the trade for applicationto many of the ordinary gages at present in use, and it will be seenthat as the cutting or operative end of the device wears down from usethe same may be repeatedly sharpened from the beveled side thereofwithout in any manner affecting the function of the straight side orface, which remains constant as a standard. It will be understood, ofcourse, that my improved marking device or scriber may be variouslyconstructed in the main body portion thereof and also that the same maybe fitted to or upon the gage-stock in other ways than that herein shownand described.

Having thus described my invention, I claim-- 1. A gage provided with amarking device or scriber consisting of substantiallya circularelongated body formed at opposite sides with flat faces and at each endwith a cutting edge.

2. A gage provided with a marking device or scriber comprisingsubstantially a circular elongated body formed at opposite sides at theends with fiat faces and at each end with a curved cutting edge.

3. A gage provided with a marking device or scriber formed at each endwith one fiat lateral face, said faces being on opposite sides, and theends being beveled opposite such faces to form cutting edges.

4. As anew article of manufacture, a marking device or scriber for gagescomprising substantially a circular elongated body formed at each endwith one fiat lateral face, said faces being on opposite sides, and theends of the device being beveled opposite such faces to form cuttingedges.

- JUSTUS A. TRAUT.

Witnesses:

W. J. WORAM, E. G. HOFFMAN.

